/**
 * CalendarUtil.java
 * 版权所有(C) 2013
 * 创建者:cuiran 2013-12-13 下午12:02:55
 */
package com.ghyf.mplay.util;
import java.text.DateFormat;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;
/**
 * 日期工具类 
 * @author cuiran
 * @version 1.0.0
 */
public class CalendarUtil {

	 private int weeks = 0;// 用来全局控制 上一周，本周，下一周的周数变化
	    private int MaxDate; // 一月最大天数
	    private int MaxYear; // 一年最大天数

	    
	    public static void main(String[] args) {
//	        CalendarUtil tt = new CalendarUtil();
//	        System.out.println("获取当天日期:" + tt.getNowTime("yyyy-MM-dd"));
//	        System.out.println("获取本周一日期:" + tt.getMondayOFWeek());
//	        System.out.println("获取本周日的日期~:" + tt.getCurrentWeekday());
//	        System.out.println("获取上周一日期:" + tt.getPreviousWeekday());
//	        System.out.println("获取上周日日期:" + tt.getPreviousWeekSunday());
//	        System.out.println("获取下周一日期:" + tt.getNextMonday());
//	        System.out.println("获取下周日日期:" + tt.getNextSunday());
//	        System.out.println("获得相应周的周六的日期:" + tt.getNowTime("yyyy-MM-dd"));
//	        System.out.println("获取本月第一天日期:" + tt.getFirstDayOfMonth());
//	        System.out.println("获取本月最后一天日期:" + tt.getDefaultDay());
//	        System.out.println("获取上月第一天日期:" + tt.getPreviousMonthFirst());
//	        System.out.println("获取上月最后一天的日期:" + tt.getPreviousMonthEnd());
//	        System.out.println("获取下月第一天日期:" + tt.getNextMonthFirst());
//	        System.out.println("获取下月最后一天日期:" + tt.getNextMonthEnd());
//	        System.out.println("获取本年的第一天日期:" + tt.getCurrentYearFirst());
//	        System.out.println("获取本年最后一天日期:" + tt.getCurrentYearEnd());
//	        System.out.println("获取去年的第一天日期:" + tt.getPreviousYearFirst());
//	        System.out.println("获取去年的最后一天日期:" + tt.getPreviousYearEnd());
//	        System.out.println("获取明年第一天日期:" + tt.getNextYearFirst());
//	        System.out.println("获取明年最后一天日期:" + tt.getNextYearEnd());
//	        System.out.println("获取本季度第一天:" + tt.getThisSeasonFirstTime(11));
//	        System.out.println("获取本季度最后一天:" + tt.getThisSeasonFinallyTime(11));
//	        System.out.println("获取两个日期之间间隔天数2008-12-1~2008-9.29:"
//	                + CalendarUtil.getTwoDay("2008-12-1", "2008-9-29"));
//	        System.out.println("获取当前月的第几周：" + tt.getWeekOfMonth());
//	        System.out.println("获取当前年份：" + tt.getYear());
//	        System.out.println("获取当前月份：" + tt.getMonth());
//	        System.out.println("获取今天在本年的第几天：" + tt.getDayOfYear());
//	        System.out.println("获得今天在本月的第几天(获得当前日)：" + tt.getDayOfMonth());
//	        System.out.println("获得今天在本周的第几天：" + tt.getDayOfWeek());
//	        System.out.println("获得半年后的日期："
//	                + tt.convertDateToString(tt.getTimeYearNext()));
	    }

	    
	    public static int getYear() {
	        return Calendar.getInstance().get(Calendar.YEAR);
	    }

	    
	    public static int getMonth() {
	        return Calendar.getInstance().get(Calendar.MONTH) + 1;
	    }

	    
	    public static int getDayOfYear() {
	        return Calendar.getInstance().get(Calendar.DAY_OF_YEAR);
	    }

	    
	    public static int getDayOfMonth() {
	        return Calendar.getInstance().get(Calendar.DAY_OF_MONTH);
	    }

	    
	    public static int getDayOfWeek() {
	        return Calendar.getInstance().get(Calendar.DAY_OF_WEEK);
	    }

	    
	    public static int getWeekOfMonth() {
	        return Calendar.getInstance().get(Calendar.DAY_OF_WEEK_IN_MONTH);
	    }

	    
	    public static Date getTimeYearNext() {
	        Calendar.getInstance().add(Calendar.DAY_OF_YEAR, 183);
	        return Calendar.getInstance().getTime();
	    }

	    
	    public static String convertDateToString(Date dateTime) {
	        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd",Locale.getDefault());
	        return df.format(dateTime);
	    }

	    
	    public static String getTwoDay(String sj1, String sj2) {
	        SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd",Locale.getDefault());
	        long day = 0;
	        try {
	            java.util.Date date = myFormatter.parse(sj1);
	            java.util.Date mydate = myFormatter.parse(sj2);
	            day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);
	        } catch (Exception e) {
	            return "";
	        }
	        return day + "";
	    }

	    
	    public static String getWeek(String sdate) {
	        // 再转换为时间
	        Date date = CalendarUtil.strToDate(sdate);
	        Calendar c = Calendar.getInstance();
	        c.setTime(date);
	        // int hour=c.get(Calendar.DAY_OF_WEEK);
	        // hour中存的就是星期几了，其范围 1~7
	        // 1=星期日 7=星期六，其他类推
	        return new SimpleDateFormat("EEEE",Locale.getDefault()).format(c.getTime());
	    }

	    
	    public static Date strToDate(String strDate) {
	        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd",Locale.getDefault());
	        ParsePosition pos = new ParsePosition(0);
	        Date strtodate = formatter.parse(strDate, pos);
	        return strtodate;
	    }

	    
	    public static long getDays(String date1, String date2) {
	        if (date1 == null || date1.equals(""))
	            return 0;
	        if (date2 == null || date2.equals(""))
	            return 0;
	        // 转换为标准时间
	        SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd",Locale.getDefault());
	        java.util.Date date = null;
	        java.util.Date mydate = null;
	        try {
	            date = myFormatter.parse(date1);
	            mydate = myFormatter.parse(date2);
	        } catch (Exception e) {
	        }
	        long day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);
	        return day;
	    }

	    
	    public String getDefaultDay() {
	        String str = "";
	        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd",Locale.getDefault());

	        Calendar lastDate = Calendar.getInstance();
	        lastDate.set(Calendar.DATE, 1);// 设为当前月的1号
	        lastDate.add(Calendar.MONTH, 1);// 加一个月，变为下月的1号
	        lastDate.add(Calendar.DATE, -1);// 减去一天，变为当月最后一天

	        str = sdf.format(lastDate.getTime());
	        return str;
	    }

	    
	    public String getPreviousMonthFirst() {
	        String str = "";
	        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd",Locale.getDefault());

	        Calendar lastDate = Calendar.getInstance();
	        lastDate.set(Calendar.DATE, 1);// 设为当前月的1号
	        lastDate.add(Calendar.MONTH, -1);// 减一个月，变为下月的1号
	        // lastDate.add(Calendar.DATE,-1);//减去一天，变为当月最后一天

	        str = sdf.format(lastDate.getTime());
	        return str;
	    }

	    
	    public String getFirstDayOfMonth() {
	        String str = "";
	        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd",Locale.getDefault());

	        Calendar lastDate = Calendar.getInstance();
	        lastDate.set(Calendar.DATE, 1);// 设为当前月的1号
	        str = sdf.format(lastDate.getTime());
	        return str;
	    }

	    
	    public String getCurrentWeekday() {
	        weeks = 0;
	        int mondayPlus = this.getMondayPlus();
	        GregorianCalendar currentDate = new GregorianCalendar();
	        currentDate.add(GregorianCalendar.DATE, mondayPlus + 6);
	        Date monday = currentDate.getTime();

	        DateFormat df = DateFormat.getDateInstance();
	        String preMonday = df.format(monday);
	        return preMonday;
	    }

	    
	    public String getNowTime(String dateformat) {
	        Date now = new Date();
	        SimpleDateFormat dateFormat = new SimpleDateFormat(dateformat,Locale.getDefault());// 可以方便地修改日期格式
	        String hehe = dateFormat.format(now);
	        return hehe;
	    }

	    
	    private int getMondayPlus() {
	        Calendar cd = Calendar.getInstance();
	        // 获得今天是一周的第几天，星期日是第一天，星期二是第二天......
	        int dayOfWeek = cd.get(Calendar.DAY_OF_WEEK) - 1; // 因为按中国礼拜一作为第一天所以这里减1
	        if (dayOfWeek == 1) {
	            return 0;
	        } else {
	            return 1 - dayOfWeek;
	        }
	    }

	    
	    public String getMondayOFWeek() {
	        weeks = 0;
	        int mondayPlus = this.getMondayPlus();
	        GregorianCalendar currentDate = new GregorianCalendar();
	        currentDate.add(GregorianCalendar.DATE, mondayPlus);
	        Date monday = currentDate.getTime();

	        DateFormat df = DateFormat.getDateInstance();
	        String preMonday = df.format(monday);
	        return preMonday;
	    }

	    
	    public String getSaturday() {
	        int mondayPlus = this.getMondayPlus();
	        GregorianCalendar currentDate = new GregorianCalendar();
	        currentDate.add(GregorianCalendar.DATE, mondayPlus + 7 * weeks + 6);
	        Date monday = currentDate.getTime();
	        DateFormat df = DateFormat.getDateInstance();
	        String preMonday = df.format(monday);
	        return preMonday;
	    }

	    
	    public String getPreviousWeekSunday() {
	        weeks = 0;
	        weeks--;
	        int mondayPlus = this.getMondayPlus();
	        GregorianCalendar currentDate = new GregorianCalendar();
	        currentDate.add(GregorianCalendar.DATE, mondayPlus + weeks);
	        Date monday = currentDate.getTime();
	        DateFormat df = DateFormat.getDateInstance();
	        String preMonday = df.format(monday);
	        return preMonday;
	    }

	    
	    public String getPreviousWeekday() {
	        weeks--;
	        int mondayPlus = this.getMondayPlus();
	        GregorianCalendar currentDate = new GregorianCalendar();
	        currentDate.add(GregorianCalendar.DATE, mondayPlus + 7 * weeks);
	        Date monday = currentDate.getTime();
	        DateFormat df = DateFormat.getDateInstance();
	        String preMonday = df.format(monday);
	        return preMonday;
	    }

	    
	    public String getNextMonday() {
	        weeks++;
	        int mondayPlus = this.getMondayPlus();
	        GregorianCalendar currentDate = new GregorianCalendar();
	        currentDate.add(GregorianCalendar.DATE, mondayPlus + 7);
	        Date monday = currentDate.getTime();
	        DateFormat df = DateFormat.getDateInstance();
	        String preMonday = df.format(monday);
	        return preMonday;
	    }

	    
	    public String getNextSunday() {

	        int mondayPlus = this.getMondayPlus();
	        GregorianCalendar currentDate = new GregorianCalendar();
	        currentDate.add(GregorianCalendar.DATE, mondayPlus + 7 + 6);
	        Date monday = currentDate.getTime();
	        DateFormat df = DateFormat.getDateInstance();
	        String preMonday = df.format(monday);
	        return preMonday;
	    }

	    @SuppressWarnings("unused")
		private int getMonthPlus() {
	        Calendar cd = Calendar.getInstance();
	        int monthOfNumber = cd.get(Calendar.DAY_OF_MONTH);
	        cd.set(Calendar.DATE, 1);// 把日期设置为当月第一天
	        cd.roll(Calendar.DATE, -1);// 日期回滚一天，也就是最后一天
	        MaxDate = cd.get(Calendar.DATE);
	        if (monthOfNumber == 1) {
	            return -MaxDate;
	        } else {
	            return 1 - monthOfNumber;
	        }
	    }

	    
	    public String getPreviousMonthEnd() {
	        String str = "";
	        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd",Locale.getDefault());

	        Calendar lastDate = Calendar.getInstance();
	        lastDate.add(Calendar.MONTH, -1);// 减一个月
	        lastDate.set(Calendar.DATE, 1);// 把日期设置为当月第一天
	        lastDate.roll(Calendar.DATE, -1);// 日期回滚一天，也就是本月最后一天
	        str = sdf.format(lastDate.getTime());
	        return str;
	    }

	    
	    public String getNextMonthFirst() {
	        String str = "";
	        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd",Locale.getDefault());

	        Calendar lastDate = Calendar.getInstance();
	        lastDate.add(Calendar.MONTH, 1);// 减一个月
	        lastDate.set(Calendar.DATE, 1);// 把日期设置为当月第一天
	        str = sdf.format(lastDate.getTime());
	        return str;
	    }

	    
	    public String getNextMonthEnd() {
	        String str = "";
	        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd",Locale.getDefault());

	        Calendar lastDate = Calendar.getInstance();
	        lastDate.add(Calendar.MONTH, 1);// 加一个月
	        lastDate.set(Calendar.DATE, 1);// 把日期设置为当月第一天
	        lastDate.roll(Calendar.DATE, -1);// 日期回滚一天，也就是本月最后一天
	        str = sdf.format(lastDate.getTime());
	        return str;
	    }

	    
	    public String getNextYearEnd() {
	        String str = "";
	        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd",Locale.getDefault());

	        Calendar lastDate = Calendar.getInstance();
	        lastDate.add(Calendar.YEAR, 1);// 加一个年
	        lastDate.set(Calendar.DAY_OF_YEAR, 1);
	        lastDate.roll(Calendar.DAY_OF_YEAR, -1);
	        str = sdf.format(lastDate.getTime());
	        return str;
	    }

	    
	    public String getNextYearFirst() {
	        String str = "";
	        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd",Locale.getDefault());

	        Calendar lastDate = Calendar.getInstance();
	        lastDate.add(Calendar.YEAR, 1);// 加一个年
	        lastDate.set(Calendar.DAY_OF_YEAR, 1);
	        str = sdf.format(lastDate.getTime());
	        return str;

	    }

	    
	    @SuppressWarnings("unused")
		private int getMaxYear() {
	        Calendar cd = Calendar.getInstance();
	        cd.set(Calendar.DAY_OF_YEAR, 1);// 把日期设为当年第一天
	        cd.roll(Calendar.DAY_OF_YEAR, -1);// 把日期回滚一天。
	        int MaxYear = cd.get(Calendar.DAY_OF_YEAR);
	        return MaxYear;
	    }

	    private int getYearPlus() {
	        Calendar cd = Calendar.getInstance();
	        int yearOfNumber = cd.get(Calendar.DAY_OF_YEAR);// 获得当天是一年中的第几天
	        cd.set(Calendar.DAY_OF_YEAR, 1);// 把日期设为当年第一天
	        cd.roll(Calendar.DAY_OF_YEAR, -1);// 把日期回滚一天。
	        int MaxYear = cd.get(Calendar.DAY_OF_YEAR);
	        if (yearOfNumber == 1) {
	            return -MaxYear;
	        } else {
	            return 1 - yearOfNumber;
	        }
	    }

	    
	    public String getCurrentYearFirst() {
	        int yearPlus = this.getYearPlus();
	        GregorianCalendar currentDate = new GregorianCalendar();
	        currentDate.add(GregorianCalendar.DATE, yearPlus);
	        Date yearDay = currentDate.getTime();
	        DateFormat df = DateFormat.getDateInstance();
	        String preYearDay = df.format(yearDay);
	        return preYearDay;
	    }

	    // 获得本年最后一天的日期 *
	    public String getCurrentYearEnd() {
	        Date date = new Date();
	        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy",Locale.getDefault());// 可以方便地修改日期格式
	        String years = dateFormat.format(date);
	        return years + "-12-31";
	    }

	    // 获得上年第一天的日期 *
	    public String getPreviousYearFirst() {
	        Date date = new Date();
	        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy",Locale.getDefault());// 可以方便地修改日期格式
	        String years = dateFormat.format(date);
	        int years_value = Integer.parseInt(years);
	        years_value--;
	        return years_value + "-1-1";
	    }

	    // 获得上年最后一天的日期
	    public String getPreviousYearEnd() {
	        weeks--;
	        int yearPlus = this.getYearPlus();
	        GregorianCalendar currentDate = new GregorianCalendar();
	        currentDate.add(GregorianCalendar.DATE, yearPlus + MaxYear * weeks
	                + (MaxYear - 1));
	        Date yearDay = currentDate.getTime();
	        DateFormat df = DateFormat.getDateInstance();
	        String preYearDay = df.format(yearDay);
	        return preYearDay;
	    }

	    
	    public String getThisSeasonFirstTime(int month) {
	        int array[][] = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 }, { 10, 11, 12 } };
	        int season = 1;
	        if (month >= 1 && month <= 3) {
	            season = 1;
	        }
	        if (month >= 4 && month <= 6) {
	            season = 2;
	        }
	        if (month >= 7 && month <= 9) {
	            season = 3;
	        }
	        if (month >= 10 && month <= 12) {
	            season = 4;
	        }
	        int start_month = array[season - 1][0];
	        int end_month = array[season - 1][2];

	        Date date = new Date();
	        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy",Locale.getDefault());// 可以方便地修改日期格式
	        String years = dateFormat.format(date);
	        int years_value = Integer.parseInt(years);

	        int start_days = 1;// years+"-"+String.valueOf(start_month)+"-1";//getLastDayOfMonth(years_value,start_month);
	        @SuppressWarnings("unused")
			int end_days = getLastDayOfMonth(years_value, end_month);
	        String seasonDate = years_value + "-" + start_month + "-" + start_days;
	        return seasonDate;

	    }

	    
	    public String getThisSeasonFinallyTime(int month) {
	        int array[][] = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 }, { 10, 11, 12 } };
	        int season = 1;
	        if (month >= 1 && month <= 3) {
	            season = 1;
	        }
	        if (month >= 4 && month <= 6) {
	            season = 2;
	        }
	        if (month >= 7 && month <= 9) {
	            season = 3;
	        }
	        if (month >= 10 && month <= 12) {
	            season = 4;
	        }
//	        int start_month = array[season - 1][0];
	        int end_month = array[season - 1][2];

	        Date date = new Date();
	        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy",Locale.getDefault());// 可以方便地修改日期格式
	        String years = dateFormat.format(date);
	        int years_value = Integer.parseInt(years);

//	        int start_days = 1;// years+"-"+String.valueOf(start_month)+"-1";//getLastDayOfMonth(years_value,start_month);
	        int end_days = getLastDayOfMonth(years_value, end_month);
	        String seasonDate = years_value + "-" + end_month + "-" + end_days;
	        return seasonDate;

	    }

	    
	    private int getLastDayOfMonth(int year, int month) {
	        if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8
	                || month == 10 || month == 12) {
	            return 31;
	        }
	        if (month == 4 || month == 6 || month == 9 || month == 11) {
	            return 30;
	        }
	        if (month == 2) {
	            if (isLeapYear(year)) {
	                return 29;
	            } else {
	                return 28;
	            }
	        }
	        return 0;
	    }

	    
	    public boolean isLeapYear(int year) {
	        return (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0);
	    }

	    
	    public boolean isLeapYear2(int year) {
	        return new GregorianCalendar().isLeapYear(year);
	    }
	}
